Improvement in lathe boxes and journals



UNITED STATES AUBIN WOOD, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT IN LATHE BOXES AND JOURNALS.

Specification forming part of Letters Patent No. 72,147, dated December l0, 1867.

To all whom 'it may concern:

Beit known that I, AUBIN WOOD, of the city and county of Worcester, and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Lathe Boxes and Journals, of which the following is a full, clear, and exact description, reference being hadto the accompanyin g drawings, form. ing a part of this specification, in which- Figure l represents a perspective view of my improved lathe-box and so much of the journal as is necessary to illustrate my invention, the cap of the box being shown turned back to expose the bearing of the journal. Fig. 2 represents a longitudinal central section of the box and journal when the cap is down, and Fig. 3 represents a crosssection of the same.

To enable those skilled in the art to which my invention belongs to make and use the same, I will proceed to describe it more in detail.

The part marked A in the drawings is the bottom of the box, and in the bottom of which is a longitudinal recess or groove, a, and upon the'front side of the part A is an oil-cup, B, having a cover, b. The oil-cup Band recess or groove a. are connected by a small oil-hole, c. The journal or bearing C has two grooves, d d, cut in the surface thereof. These grooves run from the point c, where they join each other, to near the flanges f f, and then back again to the point c. f

The operation is as follows: The recess or groove a being lled with some brous material, the cap b is removed, and some lubricat ing substance is turned into the cup B until it lls the groove a, passage c, and cup B, when cap b is replaced; As the lathe-journal C revolves the oil is taken up by the surface of the journal coming in contact with the brous material in the groove a, and is forced by the grooves d d outward and inward in such a manner that the bearing-surfaces of the journal C and box D are both kept perfectly lubricated,

If preferred, the cup B may be arranged on It will be observed that the cup B is so arranged as respects the groove a. that when full the oil will be raised in groove a, so as to nearly or quite touch the journal C, so that the operator can always tell when a sufficient quantity of oil has been turned into box B.

and the cap b in place, as shown in Fig. 3 of the drawings, there is no chance for dust or dirt to reach the wearing-surfaces of the journal and box.

It is important that the journal of an engine-lathe run true in order to do good work, and, as the boxes and journals have heretofore been constructed, a large number of the journals are worn untrue by the first day-s use, owing to the want of proper lubrication. By my improvements all such liability of Wearin g of the journal is obviated, since it requires only one proper application of oil, as above clined oil-passage c, formed in the bottom part A of the journal-box, substantially in the mamier and for the purposes herein shown and specified.

2. The combination of the journal C, having the peculiarly-shaped grooves d d cut in its surface, with the journal-box D, provided in its lower part with the oil-box, inclined oilpassage, and groove a, under the arrangement substantially as herein shown and set forth.

AUBIN WOOD.

Witnesses:

Tnos. H. DODGE,

the end of the part A.

D. L. MILLER.

The cap E is tight, and when that is down described, for many days, even when the lathe ment of the oil-box B and groove a and in 

